Bug: React 19 Build Error Report

[epicRipper]

React 19 Build Error Report

React version

I'm using React 19

Steps To Reproduce

1. First, I cloned the React 19 source code from its official repository using the standard git clone command.

2. After that, I navigated to the cloned directory in the terminal and ran the yarn install command to install all the necessary dependencies for the project.

3. Then, I executed the yarn run build command to start the build process of the React 19 source code.
   However, during the build process, an error occurred. The detailed error message is as follows:

Link to code example

Since it's the React 19 source code itself that I'm building, I'm unable to provide a separate external code example link at the moment. The error occurs during the standard build process of the cloned React 19 source code following the steps mentioned above.

The current behavior

When running the yarn run build command after cloning the code and installing dependencies, the build process fails with the SyntaxError shown above. Specifically, the rollup-plugin-flow-remove-types plugin encounters an issue while parsing the react-dom-client.development.js file, deeming an expression at line 68, column 5 as invalid. This halts the entire build process for React 19, preventing the successful generation of the expected build output.

The expected behavior

The expected behavior is that when I follow these steps (cloning the code, installing dependencies, and running yarn run build), the build process for React 19 should complete without any errors. The rollup-plugin-flow-remove-types plugin should be able to correctly parse the react-dom-client.development.js file and perform its intended operations smoothly, allowing the build to finish successfully and produce the necessary files for React 19 as intended.

[adi-ydv-1]

have you edited anything in the codebase @epicRipper

[epicRipper]

No, I haven't modified any source code in the codebase :(
@adi-ydv-1

[Shaheryarkhalid]

I am trying to recreate the above mentioned bug, react-dom-development.js builds perfectly fine for me. I think your issue might be with some typo. Try cloning again and try yarn build.

But that does not mean there are no issues.

During my first build following error happened:

During my second build following error happened:

During my third build following error happened:

During my fourth build following error happened:

During my fifth build following error happened:

During my sixth build following error happened:

During my seventh build following error happened:

During my seventh build following error happened(Same error happened third time):

After 6 hours of trying to build i am giving up. Seems like i am running in circles. Some modules build fine first time but gives error on next tries. if any body has any idea please mention what is causing these errors

[github-actions]

This issue has been automatically marked as stale. If this issue is still affecting you, please leave any comment (for example, "bump"), and we'll keep it open. We are sorry that we haven't been able to prioritize it yet. If you have any new additional information, please include it with your comment!

[github-actions]

Closing this issue after a prolonged period of inactivity. If this issue is still present in the latest release, please create a new issue with up-to-date information. Thank you!